The water reservoir is composed
of a plastic container, which has been fitted with an internal heatsink, which
is mated to an external heat sink.The external heatsink is equipped with a fan to provide
forced air-cooling.

A Rio 800 submersible water pump is
contained within the reservoir.The
pump is capable 800 liters per minute and maximum head of four feet.The figure below shows the pump, reservoir and heatsink without the fan
installed.